Textbook Question
Define each of the following terms in your own words, using 20 or fewer words.
a. Peripheral nerve
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Ch. 13 The Peripheral Nervous System
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Chapter 13, Problem 3c
Define each of the following terms in your own words, using 20 or fewer words.
c. Posterior root ganglion
Verified step by step guidance1
Understand that the posterior root ganglion is part of the peripheral nervous system.
Recognize that it contains the cell bodies of sensory neurons responsible for transmitting sensory information.
Note that it is located in the posterior (dorsal) root of a spinal nerve.
Learn that sensory signals from the body travel through the posterior root ganglion to the spinal cord.
Remember that it plays a critical role in processing sensory input like pain, temperature, and touch.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Posterior Root Ganglion
A cluster of nerve cell bodies located near the spinal cord, involved in sensory signal transmission.
Recommended video:
Guided course
02:31
Anterior and Posterior
Sensory Neurons
Nerve cells that carry sensory information from the body to the central nervous system for processing.
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04:20The Neuron
Spinal Nerve Anatomy
The structure of spinal nerves, which includes roots that connect the spinal cord to the peripheral nervous system.
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2:25Nerves and Blood Supply
Related Practice
Textbook Question
When Mr. Williams goes to the emergency department with pain in the area along the midline of the diaphragm, he worries he is having a heart attack. Could the pain be related to his heart? Could it be related to any other organ(s)? Explain.
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Textbook Question
First, write the Roman numeral that corresponds to each named cranial nerve (after the abbreviation CN). Second, match the cranial nerve with its correct function from the column on the right.
CN____
______Vestibulocochlear nerve
CN____
______Trigeminal nerve
CN____
_______Hypoglossal nerve
CN____
_______Abducens nerve
CN____
_______Vagus nerve
CN____
_______Olfactory nerve
CN____
_______Accessory nerve
CN____
_______Oculomotor nerve
CN____
_______Facial nerve
CN____
_______Optic nerve
CN____
_______Glossopharyngeal nerve
CN____
_______Trochlear nerve
a. Motor to the lateral rectus muscle
b. Motor to the muscles of facial expression; lacrimation; salivation; taste to the anterior two-thirds of the tongue
c. Sense of smell
d. Motor to the muscles for swallowing; salivation; taste to the posterior one-third of the tongue; somatic sensation from the throat
e. Senses of hearing and equilibrium
f. Motor to the superior oblique muscle
g. Motor to the tongue
h. Motor to the sternocleidomastoid and trapezius muscles
i. Sense of vision
j. Motor to muscles of swallowing and speaking; parasympathetic innervation to thoracic and abdominal viscera; sense of taste from the throat
k. Sensory to the face; motor to the muscles of mastication
l. Motor to four of six extrinsic eye muscles; constricts the pupil; changes the shape of the lens; opens the eyelid
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Textbook Question
Define each of the following terms in your own words, using 20 or fewer words.
b. Nerve plexus
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Textbook Question
Which cranial nerves are sensory only, primarily motor, and mixed?
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Textbook Question
Match the following nerves with the structures they innervate.
____Phrenic nerve
____Median nerve
____Femoral nerve
____Tibial nerve
____Radial nerve
____Intercostal nerves
____Common fibular nerve
____Musculocutaneous nerve
a. Motor to the triceps brachii muscle and muscles in the forearm that extend the hand; sensory from the posterior hand
b. Motor to the muscles in the anterior arm that flex the forearm; sensory from skin over the lateral forearm
c. Motor to the muscles in the anterior and lateral leg that evert and dorsiflex the foot; sensory from the skin of the anteroinferior leg
d. Motor to the diaphragm muscle
e. Motor to the muscles in the anterior thigh extend the knee; sensory from the skin over the anterior thigh and leg
f. Motor to the hamstring muscles that extend the thigh and flex the leg, muscles of the leg that plantarflex the foot, and muscles of the foot; sensory from the skin over the posterior and lateral leg and foot
g. Motor to the muscles between the ribs and the abdominal muscles; sensory from the skin over the abdomen
h. Motor to the muscles in the forearm that flex the hand, certain intrinsic hand muscles; sensory from the skin of the anterior hand
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